I assume he must be talking about one of these
http://suchen.mobile.de/fahrzeuge/changeSortOptions.html?sortPath=price.consumerGros sEuro&defaultOrder=ASCENDING&__lp=3&scopeId=C&sortOption.sortBy=price.consumerGrossEuro&sortOption.sortOrder=ASCENDING&makeModelVariant1.makeId=3500&makeModelVariant1.modelId=45&makeModelVariant1.searchInFreetext=false&makeModelVariant2.searchInFreetext=false&makeModelVariant3.searchInFreetext=false&vehicleCategory=Car&segment=Car&minFirstRegistrationDate=1980-01-01&maxFirstRegistrationDate=1991-12-31&siteId=GERMANY&negativeFeatures=EXPORT&damageUnrepaired=NO_DAMAGE_UNREPAIRED&customerIdsAsString=&lang=de